Tell me this isn't music to your ears...

[cfellows]

[ame=http://www.youtube.com/watch?v=Xjk4O7JcQmE&feature=related]http://www.youtube.com/watch?v=Xjk4O7JcQmE&feature=related[/ame]

 

[Metal Butcher]

Sounds like a diesel to me.

Sweet!

-MB

 

[cfellows]

I think it's probably a 2-stroke hot bulb engine.

 

[crankshafter]

Music for me to. The beat comes from a Wickmann semidiesel engine made by Wickmann Motor in Norway.
PS:
I'm currently working on a 2cycle dieselengine from the same maker.

CS

 

[Niels Abildgaard]

It is a hot bulb engine and the proces is entirely different from diesel.
The exhaust smells very different and the semidiesel name was something invented by marketing.